Image forming unit with control electrodes arranged to be electr

Details Image forming unit with control electrodes arranged to be electr Image forming unit with control electrodes arranged to be electr

1994-06-20

1999-02-02

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347151, 347125, B41J 206

Patent

active

058671900

ABSTRACT:
An aperture electrode unit mounted in an image forming apparatus includes a polyimide insulating sheet, plural apertures, substantially T-shaped control electrode portions each of which is provided at a part of the peripheral edge of each aperture, and conductive wiring portions extending from the control electrode portions to the downstream side of a toner supply direction. With this construction, a minimum distance can be kept between a control electrode portion and a conductive wiring portion, which are adjacent to each other. So, no breakdown occurs, and image quality can be improved.

REFERENCES:
patent: 3689935 (1972-09-01), Pressman et al.
patent: 5036341 (1991-07-01), Larsson
patent: 5404159 (1995-04-01), Ohashi
patent: 5515084 (1996-05-01), Larson

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